Drilling exhaust system

**Disco Dan** · 17th February 2007, 11:39

After my recent incident with what seemed like half the worlds supply of diesel on a roundabout, I have had a look at my exhaust...

As you can see from the picture it has been crushed, and its just about flattened it.
My question is could I drill a small (1-2mm) hole on the engine side of the pipe to prevent the back pressure from blowing up those two cylinders?

It has a can on each side each servicing two cylinders.

Its going to be a few weeks before I can afford to have it repaired so was thinking about an option to sort me out until then.

**scumdog** · 17th February 2007, 11:55

"I don't think so Tim"

It would have to be a 25mm hole minimum to make any difference, can you imagine the noise?

Can you not take the muffler off and use a pipe and hammer or whatever to pound the section of pipe into a (roughly!) round shape??

**Disco Dan** · 17th February 2007, 11:58

Originally Posted by scumdog

"I don't think so Tim"

It would have to be a 25mm hole minimum to make any difference, can you imagine the noise?

Can you not take the muffler off and use a pipe and hammer or whatever to pound the section of pipe into a (roughly!) round shape??

ahh phewy... its a fully welded system all the way through.

any way to pull it out a bit without removing the pipe?

**Karma** · 17th February 2007, 12:00

Weld something to the outside of the pipe, use that to pull the pipe out, then cut it off.

**Disco Dan** · 17th February 2007, 12:05

Originally Posted by Weasel

Weld something to the outside of the pipe, use that to pull the pipe out, then cut it off.

ahh, great. But what about if i dont have welding gear...

**NinjaNanna** · 17th February 2007, 12:26

The pipe may be too heavy but you could try a dent puller, you may be able to hire one or buy one from Super Cheap Auto.

Try the type where you have to drill a hole in the pipe into then screw the "slide hammer" into it.

**j_redley** · 17th February 2007, 16:20

You could take the whole exhaust off and try and straighten it with a hammer and a wooden block, or a vice if you don't have/afford any fancy equipment.

I'd love to hear the thing if you did put holes in it :-p

How does it run with the exhaust crumpled like that?

**Disco Dan** · 17th February 2007, 20:28

Originally Posted by j_redley

You could take the whole exhaust off and try and straighten it with a hammer and a wooden block, or a vice if you don't have/afford any fancy equipment.

I'd love to hear the thing if you did put holes in it :-p

How does it run with the exhaust crumpled like that?

Its welded on every joint, so I will have to actually hack saw it off...

its seems to run ok, but im no expert!

I was thinking of drilling a hole in the middle of the dent and trying to hook something inside to try and pull it out again?

**j_redley** · 18th February 2007, 10:45

It just be a question of what have you got thats strong enough and that small to pull it out. Is it not bolted on at the engine? Or do you mean welded to the frame?

Your next thing would be take it to a shop and see if they have any advice.

**Disco Dan** · 18th February 2007, 10:52

Originally Posted by j_redley

It just be a question of what have you got thats strong enough and that small to pull it out. Is it not bolted on at the engine? Or do you mean welded to the frame?

Your next thing would be take it to a shop and see if they have any advice.

*click*

...todays mission I think....

**j_redley** · 18th February 2007, 21:22

Im hoping you clicked in that it was bolted on at the engine? Do let us know how you got on.

**Steam** · 18th February 2007, 22:12

Equipment:

Hacksaw
Vacuum Cleaner pipe (or a pipe that will fit)
Two hose clamps.

That's what's holding my muffler together right now, until I can be bothered to get it welded proper-like.